I’m asking about friends because we choose those and we can’t choose family.
I had a childhood best friend, born two months apart, lived on the same street and our mums were best friends. She was however exceptionally snobby and I saw her cut out friends one by one, until it got to my turn. I guess because I didn’t live up to her standards anymore, I never got an explanation, she would just make excuses when I asked to meet up - so I stopped asking.
Then the friend I cut out was a compulsive liar. She used me a lot for money, lifts and then started lying about an illness. She told me she was in hospital when she was actually having her eyelashes done.